You can use photo math to help you,It helps a lot of people with equations. You should go ahead and give it a try
The mean is 3 fish per day.
(0+3+6) = 9
9/3 = 3
The equation of the unit circle is
x^2 + y^2 = 1
If x = 5/8, then solving for y
(5/8)^2 + y^2 = 1
y^2 = 1 - 25/64
y^2 = 39/64
y = sqrt(39/64)
We use the positive square root because positive x-coordinate and positive y-coordinate is in the first quadrant.
Therefore the answer to this question is sqrt(39)/8
Option A. зу + 12 is the right answer
Step-by-step explanation:
The substitution method consists of finding the value of a variable from one equation and then putting it into another equation to find the value of other variable.
Given equations are:

We have to isolate x in the 2nd equation

Multiplying equation by -1

Subtracting 3y from both sides

Hence,
Option A. зу + 12 is the right answer
Keywords: linear equations, Variables
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